extern crate repl_rs;
use repl_rs::Repl;
use repl_rs::{Command, Parameter, Result, Value};
use std::collections::HashMap;
use std::fmt::Display;
struct CustomPrompt;
impl Display for CustomPrompt {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f, "$ ")
}
}
fn hello<T>(args: HashMap<String, Value>, _context: &mut T) -> Result<Option<String>> {
Ok(Some(format!("Hello, {}", args["who"])))
}
fn main() -> Result<()> {
let mut repl = Repl::new(())
.with_name("MyApp")
.with_prompt(&CustomPrompt)
.with_version("v0.1.0")
.with_description("My very cool app")
.add_command(
Command::new("hello", hello)
.with_parameter(Parameter::new("who").set_required(true)?)?
.with_help("Greetings!"),
);
repl.run()
}